Re: [Dev-C++] undefined reference problem

The problem is that it isn't enough to add an include file to your source.
You must also add the corresponding library file (libXX.a) to the project.
Specify -libXX in the linker options.

/Per W

On Wed, 15 Dec 2004, mohamad chaitou wrote:

> Hi all,
> I'm new to g++. I'm trying to use a new library for linear algebra
> called Lapack++, the problem is when I include this library into a
> source file I get errors of kinds "undefined refernce". for example this
> little and stupid code:
> #define LA_COMPLEX_SUPPORT
> #include <lapack++.h> // the new library
> #include <iostream>
> int main()
> {
>    LaGenMatDouble A ; // this uses the new library
>    std::cout<< "This is a test  "<< std::endl;
>    return 0;
> }
> the erros are like:
> /tmp/cc2YU0wo.o(.text+0x19): In function `main':
> undefined reference to =AB LaGenMatDouble::LaGenMatDouble[in-charge]()=BB
>
> What could be the problem?
> Please give me some feddback.
> thanks in advance
>
>
>
>
>
>
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from real users.
> Discover which products truly live up to the hype. Start reading now.
> http://productguide.itmanagersjournal.com/
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>